Spool



Dec. 7 1926. 1,609,473

E. J. HUBBARD sPo oL Filed July 6' 192 5 P eaaa Dec 7, 11926.

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sroon.

- Application filed July 6,

p I sheet metal shell, so that the resulting structure will be resistantto shocks and bending and -will be particularly (strong and rigid at the juncture of the 'core and end flange parts.

On the drawing Fig. 1 is a plan View, partly in diametral section, of the spool;

Fig. 2 is an end View;

Fig. 13' is an end View of the sheet metal shell before insertion of the wood filler and backing; and

Fig. 4 is a sectionalview on plane 4-4; ofFig.1. .l

The surface core layer or shell 10 is bent ,upinto cylindrical form from a rectangular piece of sheet metal with its edges intimately connected preferably by means of double seaming 11.v Secured to the ends of this cylindrical core shell are the flanges 12 and 13 of cylindric ordish-shaped form and bent intgral from sheet 'metal. Each flange has.

-a central opening 14 of a diameter equal to the inner diameter-of the core shell, and in the edges surrounding the opening 14 are the shallow notches 15 through which extend the tongues'16' projecting from the corresponding end of the coreshell, these tonguesbeing deflected at rightangles and I secured, preferably by spot welding, against the inner face of the flange. the ends of the pore shell abutting against the outer surface of the flanges around the openings 14. This construction rigidlyand securely fixes the flanges" relative to the core shell, and holds the flanges tightly against the core ends so 5 that there will be nocrevices or openings in which the yarn'might catgh.

Fitting intimately into each end flange is a filler 16 in the form of'a disc of wood,

fiber, or other non-metallic light and strong 5 material. The filler is rigidly secured in each'flange by spinning the edge sectionl? plied to a spindle.

925. serial no. 41,457. p

around the outer corner of the filler and a distance into the material, as clearly shown in,Fig.-1, this edge section then formin a metallic peripheral seat for the spoolwhieh will withstand wear'and protect the filler.

The backing inside of the core shell is also. of wood or other suitable light and strong material. It comprises two similar parts, each comprising a comparatively'thin annular section 18,.and a radially oontra-ct-- 1 ed end section 19 through which extends the central passageway 20for receivingthe arher or spindle on which the spool turns when in use or when being wound with yarn. Between the spindle opening 2Q and the annular inner end 18 is the conical guide wall 21' for guiding the spindle end tothe upper passageway 20 when the spool is ap- At the ends of each backing member is the-reduced extension or neck 22' fitting in;

to the central opening 23 through the corresponding flange filler 16 Each flangeis secured to its corresponding c'ore backing part by means ofthe opening 2 .which, preferably, have suflic1entfrictional engagement so that they maybe tightly and securely held togetherfalthough glue may be used if desired. Before the filler and backing parts are inserted, the flange edges will be straight as indicated in Fig. 3. The

backing parts are then inserted from'yopposite ends into the core shell to bring the flange fillers into-the flanges, and the inner ends of the core backing parts will. then abut, as shown in Fig. 1. The l edgesections 17 are then turned over to securely clamp and lock the fillers within the flanges. The inger' corners of the flanges are well rounde on the spool or unwound therefrom; T

and neck 22,

so that yarn may readily bewound In order to acconinrodate the seam 11 of as tin plate is preferably used, the tin plating affording a very smooth non-friction surface forthe yarn.

My improved structure possessesall the advantages of an all metal spool, and possesses the resilient and light weight quali ties of the all-wood spool. The fillingand backing Within the sheet metal shell gives the structure resiliency which the all metal spool does not possess.

Having described my invention, I- claim as follows: 1

In aspool, the combination of a cylindrical core shell of sheet metal, end structures of sheet metal secured concentrically tothe core shell ends, discs of non-metallic filler material secured in said end structures and backing material inner ends having each a central opening, non-metallic backing members fitting in the ends of said core shell and abutting at their inner ends, the outer ends in said backing members having reduced extensions fitting tightly into said filler discs, there being spindle bearing passageways in the outer ends. of said backing members, said backing members at their inner ends being of increased internal diameter, and spindle guideways from said passageways. y

In' witness whereof, I hereunto subscribe my name this 1st day of July, 1925.

EBER J. HUBBARD.

to said spindle i 

